I have used trails end for the last three years. I have successfully taken two bucks while using the product. And while I didn't take a buck last year I passed on two smaller bucks while using the product. My opinion is that this stuff works and I would highly recommend. I have had success during the rut and pre-rut. It masks your scent and creates curiosity for the deer.
Was hunting public land yesterday and put a wick with tails end on it in my shooting lane. About 5p.m I saw two does comeing around a trail winding this stuff.The lead doe walked right up to the wick and touched her nose to it. I took the shot for my first deer of the year. Awesome stuff!
Trails end 307 has worked well for me for a few years now. When using it on boot scent pads I have had several bucks follow me right to my stand and in bow range. So far only smaller bucks, but I'm confident a big one will come along.